Modified Hydrological Drought Risk Assessment Based on Spatial and Temporal Approaches

Sustainability

Siti Fatin Mohd Razali¹  Nur Shazwani Muhammad¹  Hasrul Hazman Hasan¹  Asmadi Ahmad² 

[1] Department of Civil Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia;Office of Klang River Basin, Department of Irrigation & Drainage Kuala Lumpur, Kolam Takungan Batu, Batu 4 ½ Off Jalan Ipoh, Kuala Lumpur 51200, Malaysia;

关键词: drought;    hydrological drought;    drought risk index;    spatial and temporal;    drought hazard;    socio-economic;   

DOI  :  10.3390/su14106337

来源: DOAJ

【 摘 要 】

This study was conducted using a modified drought risk assessment in which hydrological data were processed to assess the hazards and risk of hydrological drought in Peninsular Malaysia. Although drought vulnerability and risk assessment are critical components of the drought phenomenon, the lack of a comprehensive integrated drought risk assessment in Malaysia has led to increased socio-economic impacts. The Hydrological Drought Risk Index (HDRI) illustrates the relative importance of hazard and vulnerability assessments in drought risk management for Peninsular Malaysia using the Streamflow Drought Index (SDI). This study presents an integrated drought characteristics-based risk assessment framework to improve hydrological drought risk assessment. The hydrological drought risk assessment was conducted by combining physical hazard and socioeconomic variables across the region. The periods of 1998–1999 and 2017–2018 mark the most critical hydrological droughts. The results also show that the trend of hydrological drought in river basins is towards dry conditions with no change in the foreseeable future. This study proposes a theoretical framework for effective drought risk management that can be used by the government and its stakeholders for sustainable water resource management.

【 授权许可】

Unknown